Backend Engineer - (NestJS, Node.js, TypeScript, Prisma ORM, PostgreSQL ,Redis, Azure , Docker)

Job Description:
Job Description: Backend Engineer
Tech Stack: NestJS | Node.js | TypeScript | Prisma ORM | PostgreSQL | Redis | Microsoft Azure | Docker

Total Exp : 6 - 8 Years
Notice Period : Immediate Joiners
Work Timings : 06.00 P.M. to 03.00 A.M

Role Overview
We are looking for a Backend Engineer with strong experience in NestJS, Node.js, TypeScript, and PostgreSQL to build scalable, secure, and high-performance backend systems. The ideal candidate should have a solid understanding of backend architecture, API design, database optimization, caching, asynchronous processing, cloud services, and production reliability.
Key Responsibilities

- Design, develop, and maintain scalable backend services and REST APIs using NestJS, Node.js, and TypeScript.

- Build modular backend architectures using NestJS modules, controllers, services, dependency injection, guards, interceptors, and middleware.

- Design and optimize database schemas, queries, relationships, indexes, and transactions using PostgreSQL and Prisma ORM.

- Implement request validation, centralized error handling, consistent API responses, and API documentation using Swagger/OpenAPI.

- Develop secure authentication and authorization mechanisms, including JWT, RBAC, and permission-based access control.

- Implement caching strategies using Redis and asynchronous processing using messaging queues and background jobs.

- Integrate third-party APIs and external systems, handling authentication, rate limits, retries, timeouts, and failures.

- Optimize API performance, database access, resource utilization, and application scalability.

- Containerize applications using Docker and deploy backend services using Microsoft Azure.

- Implement structured logging, monitoring, distributed tracing, health checks, and other observability practices.

- Write automated tests, participate in code reviews, troubleshoot production issues, and maintain technical documentation.

- Collaborate with frontend engineers and other stakeholders to define API contracts and deliver end-to-end features.
Required Skills
Core Technologies and Architecture

- Strong proficiency in Node.js, TypeScript, and modern JavaScript.

- Hands-on experience with NestJS is mandatory, including modules, dependency injection, guards, interceptors, pipes, and exception filters.

- Strong understanding of REST API design, asynchronous programming, modular architecture, SOLID principles, and clean code practices.
Database and Caching

- Hands-on experience with PostgreSQL, Prisma ORM, schema design, migrations, transactions, indexing, and query optimization.

- Experience with Redis for caching, TTL management, cache invalidation, and performance optimization.

- Understanding of database consistency, connection pooling, and efficient data-access patterns.
API Development and Security

- Experience implementing DTOs, request validation, centralized error handling, and consistent API contracts.

- Familiarity with class-validator, class-transformer, and Swagger/OpenAPI.

- Understanding of authentication, authorization, JWT, OAuth 2.0, RBAC, API security, rate limiting, and secure secrets management.

- Experience handling pagination, filtering, API versioning, retries, and backward compatibility.
Cloud, Messaging, and Integrations

- Experience with Microsoft Azure or equivalent cloud platforms, with the ability to work with Azure services in production.

- Familiarity with Azure App Service, Azure Container Apps, Azure Database for PostgreSQL, Azure Service Bus, Azure Key Vault, and Azure Cache for Redis.

- Understanding of messaging queues, background jobs, event-driven architecture, retries, and failure recovery.

- Experience integrating third-party APIs and handling asynchronous workflows.
Performance and Engineering Practices

- Understanding of Node.js performance, concurrency, caching, database optimization, and scalability.

- Familiarity with structured logging, metrics, distributed tracing, health checks, and monitoring tools such as Application Insights or OpenTelemetry.

- Hands-on experience with Docker, Git, CI/CD, and automated testing using Jest or equivalent tools.

- Experience writing unit and integration tests and debugging application issues across development and production environments.
Preferred Qualifications

- Experience with microservices, event-driven architecture, domain-driven design, and clean architecture.

- Familiarity with advanced messaging patterns, idempotency, dead-letter queues, and distributed system reliability.

- Experience with GraphQL, webhooks, WebSockets, API gateways, or enterprise system integrations.

- Familiarity with Kubernetes, infrastructure as code, and Azure Functions.

- Experience building enterprise applications, SaaS platforms, multi-tenant systems, and role-based access control.

- Experience with AI-assisted development tools such as Claude Code for implementation, debugging, refactoring, and testing, with the ability to review and validate generated code.

- Familiarity with monorepos, shared libraries, and CI/CD workflows.
Ideal Candidate

- Strong problem-solving, analytical, and debugging skills.

- Writes clean, modular, secure, maintainable, and strongly typed code.

- Understands the reasoning behind architectural, database, and performance decisions.

- Takes ownership of features from design and development through testing and deployment.

- Communicates effectively and collaborates with frontend engineers, architects, and cross-functional teams.
Experience: Mid-level to Senior, depending on technical depth and demonstrated ownership.
Core Stack: NestJS, Node.js, TypeScript, Prisma ORM, PostgreSQL, Redis, REST APIs, Microsoft Azure, Docker, Git.

Location:
DGS India - Bengaluru - Manyata N1 Block
Brand:
Merkle
Time Type:
Full time
Contract Type:
Permanent